Database error in vBulletin :

mysql_connect(): Can't connect to MySQL server on 'evonymobbbsmysqlmaster' (104)
/data/product/evonymob/production/bbs/b/includes/class_core.php on line 317

MySQL Error   : 
Error Number  : 
Request Date  : Wednesday, November 29th 2023 @ 02:17:49 PM
Error Date    : Wednesday, November 29th 2023 @ 02:18:04 PM
Script        : http://forum.evony.com/search.php?search_type=1&searchthreadid=311690&contenttype=vBForum_Post
Referrer      : 
IP Address    : 18.206.13.203
Username      : 
Classname     : vB_Database
MySQL Version :